So I just had the worst game in my history of league

So I was queueing up for ranked cus I wanted to try to climb to gold even though my past few games were filled with trolls and people who gave up for no reason which is part of the reason why I hate playing ranked as to norms cus it stresses me out alot and makes me depressed. In this game while I was loading I randomly crashed for no reason so I tried going back in over and over to realize somehow that my data got corrupted, so I couldn't rejoin and found out when I loaded back in that they were not given the ability to remake. So not only did I have to go down a rank, I also got 5 20 min leaverbuster q's and my team had to be forced to play a losing game for no reason. I have no idea why this happened and it sucks that I had to be punished for something that I couldn't have been able to see coming. Sure I've had a lot of issues with my games before because the computer I used to play on crashed in the middle of games but it hasn't happened in months amd now I have to waste an hour and forty mins in leaverbuster because of a data corruption incident. If anything I have to wonder is why the leaverbuster is so harsh to those who haven't had incidents in a long time? (sorry this is my first post)